An IP interface within an IES or VPRN service context may be bound to a service name at any time. Only one interface can be bound to a service.
When an IP interface is bound to a service name and the IP interface is administratively up, the system scans for a VPLS service context using the name and takes one of the following actions:
If the name is not currently in use by a service, the IP interface is placed in an operationally down: non-existent service name or inappropriate service type state.
If the name is currently in use by a non-VPLS service or the wrong type of VPLS service, the IP interface is placed in the operationally down: non-existent service name or inappropriate service type state.
If the name is currently in use by a VPLS service without the allow-ip-int-bind flag set, the IP interface is placed in the operationally down: VPLS service allow-ip-int-bind flag not set state. There is no need to toggle the shutdown/no shutdown command.
If the name is currently in use by a valid VPLS service and the allow-ip-int-bind flag is set, the IP interface is eligible to be placed in the operationally up state depending on other operational criteria being met.